Save Darkness

UTTARAKHAND · 2012–2026

Uttarakhand is losing its night sky.

Modeled mean radiance has climbed from 4.60 to 14.41 nW/cm²/sr about 3.13× brighter than 2012, rising at +8.5% each year.

14.41 Radiance 2026
nW/cm²/sr
+8.5% Annual change
Urban Brightness tier
#19 of 36 states & UTs
Radiance trend nW/cm²/sr
2026
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Data modeled after AstronEra VIIRS
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